Steam logging-machine



(No Model.) 4 Sheets-Sheet 1.

G.T.G LOVER. STEAM LOGGING MAGHINE.

No. 554,260. Patented Feb. 11, 1896.

(No Model.) 4 Sheets-Sheet 2 G. T. GLOVER. STEAM LOGGING MACHINE.

No. 554,260. Patented Feb. 11, 1896..

'VIIIIIIIIIIIIII -(N0Mode1.) 4 Sheets-Sheet3. I

G.T.GLOVER. STEAM LOGGING MACHINE.

No. 554,260; Patented-Feb. 11, 1896.

mo Modem" A t e e h s w e e h s 4 N m mm M 0G LN. GM V G Tm... M A E T 8N0 554,260. Patented Feb.. 11,, 1896.

NITED STATES PATENT Qrmcr.

GEORGE T. GLOVER, OF CHICAGO, ILLINOIS.

STEAM LOGGING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 554,260, dated February11, 1896.

Application filed November 4, 1895. Serial No. 567,834. (110 model.)

I citizen of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented a certain new and usefulImprovement in Steam LoggingMachines, of which the following is aspecification.

My invention relates to steam logging-machines of the kind embodied inLetters Patent of the United States heretofore granted to me andseverally numbered and dated as follows, to wit: No. 842,596, dated May25, 1886; No. 860,584,dated April5, 1887; No. 394,851,dated December 18,1888; No. 455,394, dated July 7, 1891, and No. 426,006, dated April 22,1890.

It will be observed that in said patents the tractors ortraction-engines are not. only designed for hauling logs, but also forforming ice-roads, along which the loaded logsleds can be drawn that isto say, the machine is adapted for melting down the snow so that thesame maybe converted into an ice-bed (1 uring the severe cold which isprevalent in the northern logging regions during the winter season. i

The objects of my present invention are, first, to more thoroughly andeffectively heat a traction wheel or roller employed in a steam logging-1nacl1ine; second, to provide more convenient and efficient means forheating said wheels; third, to provide certain improvements in theconstruction of runners and means for heating the same, and finally toprovide certain novel and improved details, all as hereinafter setforth.In the accompanying drawings, Figure 1 represents in side elevation asteam loggingmachine embodying my invention. Fig. 2 is a section takenthrough Fig. 1 on line so a on a larger scale. Figs. 3 and 4 eachrepresent one of the traction-wheelf9eth. Fig. 5 represents a sectionthrough one of the tractionwheels on a plane at right angles to itsaxis. Fig. 6 represents, on a larger scale than Fig. 1, the rear portionof the machine partly in elevation and partly in section on a verticalplane through the middle line of the machine. Fig. 7 is a section takentransversely through one of the runners on line y y of Fig. 10, and Fig.8 is a like section on line y y of the same Fig. 9 is a longitudinalcentral section on line of Fig. 10, the beam being shown in elevation.Fig. 10 represents one of the runners in elevation and illustratescertain vent-pipes applied to the runner.

The engine-truck A can for certain pur poses be mounted upon wheels, butas a special and preferred arrangement it is supported upon runners B.The engine-truck carries a boiler C and engine D, from which thetraction propelling wheel or wheels can be driven.

The frame or truck E of the traction pro pelling attachment is desirablyarranged in rear of the engine-truck, and is hinge-connected with thesame for purposes fully set forth in certain of my said former patents.The traction propelling attachment is herein provided with a couple ofhollow tractionwheels F which are driven from the engine and heated byeither exhaust or live steam, (but preferably by the exhaust,) so as tomelt down the snow and thereby permit the same to become converted intoa suitable ice-bed along the road, it being understood without specialillustration that in place of the two comparatively short tractionwheels or rollers herein shown a single long hollow traction wheel orroller can be employed.

Vith reference to the mode or system herein illustrated for heating thehollow traction Wheels or rollers, the exhaust-pipe 1 of the engine D isprovided with a T end 2 from which certain flexible steam-pipes arearranged to lead to various parts of the machine for purposeshereinafter described, the pipes 3 thus connected with the exhaust beingarranged to discharge into a hollow axle G upon which the hollow wheelsF are secured.

The axle G can be chambered or made hollow through portions of orthroughout its entire length, but where it is provided with a couple ofhollow wheels set apart, so as to provide space between them for drivingconnection with the engine, the axle can be made with a solid middleportion 4, and hollow end portions 5, as in Fig. 2. The end portions ofthe axle work in boxes 6 on the traction propelling-truck, and theseboxes are provided with steam-couplings 7 having their outer endsarranged to connect with pipes 3 and their inner ends connected with thehollowed ends of the axle by swivel-joints in order that the axle mayreceive steam from its allotted supply-pipes and at the same time turnwith the wheels.

The hub S of each wheel has its bore provided with an annularenlargement 9 forming a chamber or passage which receives steam from thehollow axle through ports 10 in the latter, and discharges the steaminto the hollow wheel through ports 11 in the hub. The wheels are eachprovided with a set of hollow or chambered teeth 11 which have theirchambers in open communication with the chambers of the wheels throughports 12 in the perimeters of the latter, it being observed that one ormore of such ports can be allotted to each chambered tooth. By theforegoing arrangement each wheel will be heated by the steam dischargedinto it from its allotted supply-pipe, and also the teeth will be heatedby the steam admitted into them from the hollow wheel. The teeth as wellas the untoothed peripheral portions of the wheels will therefore beheated, and hence the snow will be effectively melted, and all danger ofits sticking to the teeth avoided. lVhere the teeth are made separatefrom the wheel and bolted upon the same, water of condensation willusually find its way out between the wheel and base portions of theteeth, although each tooth can have its base portion provided with oneor more outlet-channels 13, as in Figs. 3 and 4:.

For the broader purposes of my invention the teeth can be cast with thewheels, but as a special and preferred arrangement the teeth. are madeseparate from the wheels. Each tooth is made oblong and of V shape incross-section, and is provided with baseflanges 14, which can be boltedupon the perimeter of the wheel. The teeth are also preferably beveledat their ends, and the flanges may also be beveled along their edges, soas to more effectively prevent clogging. \Vhile each hollow or chamberedtooth could extend from end to end of its allotted wheelv or roller, itpreferably extends a portion only of such length, and with sucharrangement the teeth are desirably positioned in two seriesrespectively at opposite sides of the middle of the wheel, with theteeth of one series alternately in point of position with the teeth ofthe other series, so that the teeth of one series shall lie opposite thespaces between the teeth of the other series.

The traction wheel or wheels employed can be driven from the engine byany system of gearing or power-transmitting connection, and where onelong wheel or roller is used as a substitute for the two herein shownsuch driving connection can of course connect with the wheel or axle atone end of the latter. \Vhere, however, a couple of wheels are used, asprocket 15, Fig. .6, can be secured upon the axle midway of the wheelsand connected by a drive-chain 16 with a sprocket 17 011 a counter-shaft18 on the engine-truck, and said counter-shaft can be connected with anddriven "from the engine-shaft 19 through the medium of gears 20 and 21.The runners are also desirably steam-heated, and to such end can besupplied with either live or exhaust steam, although for the purpose ofeconomy they are heated by exhaust-steam taken from the T end 2 of theexhaust-pipe. Pipes 22, Figs. 1 and 6, are herein shown for supplyingthe rear runners, it being understood, however, that when desiredsimilar pipes can also be employed for supplying the forward runners.

Each of the supply-pipes 22 is at a point between the engine-truck andrunner provided with a jointed or flexible section 23, so as to permitthe pipe to accommodate itself to any rocking movement 011 the part ofthe runner, a simple arrangement being to provide the runner with anipple 24:, to which one end of a flexible pipe-section 23 can beattached.

As a matter of special construction each runner is provided along itsunder side with a channel 25 and a shoe 26, which is bolted to therunner, as in Fig. 8, in which way the runner can be made of wood andprovided with a metal shoe, which will be heated by steam admitted intothe chamber formed between the shoe and the wall of the channel. Thepipe or nipple 24: is arranged to discharge into one end of channe 125in the runner, and the opposite end of the runner is open suiiicientlyto permit the escape of water of condensation.

The runners are arranged to tilt or rock upon their allotted axles orbeams L, and to permit such independent motion on the part of therunners and at the same time prevent them from slipping off from thebeams L each beam is provided at each of its ends with an annulardepression or groove formed by double bevels 27, Fig. 9, and each saidgrooved portion of the beam is fitted within a two-part bearing M. Thelower portion, 28, of each bearing M is recessed so as to receive andfit upon the upper portion of its allotted runner, and the bolts 29employed for bolting the upper portion, 30, of the bearing down uponsaid lower portion, 28, can also be used for bolting the lower bearingportion, 28, upon the runner. By reason of the foregoing constructionthe runner, and if desired the bearings M, can be made of wood. Eachbeam L can also be made of wood and bolted to a bolster N, as in Fig. 6.

\Vhat I claim as my invention is- 1. A toothed traction wheel or rollerhaving teeth provided with heating-chambers, substantially as and forthe purpose set forth.

2. A toothed traction wheel orroller having teeth provided withheatingchambers, and means suitable for supplying said chambers withsteam, substantially as and for the purpose set forth.

3. A hollow traction wheel or roller having teeth provided withheating-chambers communicating with the interior of the hollow wheel orroller, substantially as set forth.

4. A hollow traction wheel or roller having teeth provided withheating-chambers, communicatin g with the interior of the wheel orroller, and means suitable for supplying steam to the interior of thehollow wheel or roller, substantially as set forth.

5. A hollow traction wheel or roller arranged upon a hollow axle havingits passage connected with the interior of the wheel or roller, andchambered teeth arranged upon the wheel or roller and having theirchambers connected with the interior of thesame, substantially as setforth.

(3. The combination with an axle provided with a steam-conductingpassage, of a hollow traction-wheel having its hub provided with asteam-passage arranged about the axle and communicating with thesteam-passage of the axle and the interior of the hollow wheel throughthe medium of ports, substantially as set forth.

7. The combination with a hollow wheel or roller of the axle rigid withthe wheel or roller and provided with a steam-conducting passage forsupplying the interior of the wheel or roller, boxes in which the endsof the axle are journaled, and a steam-coupling 7 having a swivelconnection with the axle and connected with a suitable source ofsteam-supply, substantially as set forth.

8. The runner provided with a groove 28 and a shoe 29 fitted to therunner so as to close over the groove which latter forms aheatingchamber which is supplied with steam substantially as set forth.

GEO. T. GLOVER.

lVitnesses ARTHUR F. DURAND, MARGARET M. WAGNER.

